Current Mosquito News and Events

Current Mosquito News and Events, Mosquito News Articles.
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New comprehensive study on feeding patterns of tiger mosquitos in Europe
This study, published recently in the international journal Insects, was conducted by researchers from the University of Granada, the Doñana Biological Station, and the Biomedical Research Networking Centre for Epidemiology and Public Health (CIBERESP) (2021-02-23)

Models to predict dengue, zika and yellow fever outbreaks are developed by researchers
Scientists will monitor areas in which these diseases are endemic, such as São Paulo, the Amazon, the Pantanal and Panama, to investigate the factors that trigger outbreaks (monkey being examined in Manaus área. (2021-02-23)

Scientists use machine-learning approach to track disease-carrying mosquitoes
A team of researchers from Utah State University, University of California, Davis and Yale University are using a machine-learning approach to map landscape connectivity of the species Aedes aegypti, the so-called Yellow Fever mosquito, which is a primary vector for transmission of viruses causing dengue fever, chikungunya and Zika. (2021-02-22)

Magnetic attraction: Breakthrough test for malaria
After nearly a decade of research, a new test that detects the magnetic properties of malaria-infected blood could soon be used to help eliminate the mosquito-borne disease. (2021-02-18)

Engineering immunity
University of New Mexico researchers study the use of virus-like particles to create a stable and effective malaria vaccine. (2021-02-03)

Biobased anti-thrombosis agent
Thrombosis, the clogging of blood vessels, is a major cause of heart attacks and embolism. Scientists have now engineered the first inhibitors of thrombin, a protease promoting thrombosis, that is three-fold efficient. In a study published in the journal Angewandte Chemie, the authors demonstrate that attacking three sites of the thrombin molecule is more efficient than attacking only two sites, which is the mode of action of many natural agents. (2021-01-29)

New malaria mosquito is emerging in African cities
Larvae of a new malaria mosquito species are abundantly present in water containers in cities in Ethiopia. The mosquito, Anopheles stephensi, is the main malaria mosquito in India but only appeared on the African continent a few years ago. It has now been found in cities and towns in urban settings in Ethiopia, Sudan, and Djibouti. Malaria can become an increasing problem for urban areas in Ethiopia and elsewhere in Africa. (2021-01-27)

Cats love silver vine and catnip for a more practical reason than developing euphoria
Catnip and silver vine have been known as cat attractant plants. Cat lovers use dry leaves of these plants and toys stuffed with the leaves to give joy to their pet cats. But how does this work? What is the biological significance of the responsive behavior? A research group at Iwate University, Nagoya University, Kyoto University, and University of Liverpool found that the behavior had more practical reasons than getting euphoria. (2021-01-20)

Wits University scientists artificially infect mosquitoes with human malaria to advance treatment
Scientists at the Wits Research Institute for Malaria (WRIM) in partnership with the University of Pretoria and colleagues in the US, Spain and Switzerland have identified novel antiplasmodial lead compounds for mass drug administration and vector control to eliminate malaria. (2021-01-14)

Bacteria carried by mosquitos may protect them against pesticides
Mosquitoes are transmitters of several diseases and pesticides are used to control their numbers in many countries. New study finds Wolbachia - a bacteria commonly found in insects - appears to protect them against these pesticides. (2021-01-13)

BU researchers uncover viral small RNAs in mosquito cells
Researchers from Boston University School of Medicine (BUSM) provide a new genomics resource that details the small RNA transcriptomes (gene expression) of four bio-medically important mosquito species. (2021-01-13)

Asian tiger mosquito poses low risk for Zika virus outbreaks
The Asian tiger mosquito does not pose a major risk for Zika virus epidemics, according to a study published December 31 in the open-access journal PLOS Pathogens by Albin Fontaine of the Institut de Recherche Biomédicale des Armées, and colleagues. (2020-12-31)

Multiple mosquito blood meals accelerate malaria transmission
Multiple bouts of blood feeding by mosquitoes shorten the incubation period for malaria parasites and increase malaria transmission potential, according to a study published Dec. 31 in the open-access journal PLOS Pathogens by Lauren Childs of Virginia Tech, Flaminia Catteruccia of the Harvard T.H. Chan School of Public Health, and colleagues. (2020-12-31)

$3.9M project on self-deleting genes takes aim at mosquito-borne diseases
To control mosquito populations and prevent them from transmitting diseases such as malaria, many researchers are pursuing strategies in mosquito genetic engineering. A new Texas A&M AgriLife Research project aims to enable temporary ''test runs'' of proposed genetic changes in mosquitoes, after which the changes remove themselves from the mosquitoes' genetic code. (2020-12-28)

UMD finds more West Nile virus-infected mosquitoes in lower-income areas of Baltimore
Researchers at the University of Maryland found higher rates of West Nile virus-infected mosquitoes in lower-income neighborhoods in urban areas of Baltimore, Maryland. Continuing a collaboration with the Cary Institute of Ecosystem Studies, this preliminary data provides another piece of the puzzle pointing to higher risk of mosquito-transmitted diseases in these neighborhoods already struggling with environmental injustices and poorer health outcomes. (2020-12-17)

Imitation mosquito ears help identify mosquito species and sex
Using an imitation ''ear'' modeled on the organs that mosquitos use to hear, researchers have identified a mosquito's species and sex using sound -- just like mosquitos do themselves. The researchers hope this bioinspired detector could someday be used in the field to save lives by aiding in more selective pesticide use and possibly preventing mosquitos from mating. A presentation of the new research will be given as part of the 179th ASA Meeting. (2020-12-07)

Greater mosquito susceptibility to Zika virus fueled the epidemic
By experimentally comparing wild populations of Ae. aegypti the researchers discovered that the invasive subspecies is very effective at transmitting the Zika virus not only because it has more frequent contacts with humans for blood meals, but also as a result of its greater susceptibility to the virus relative to the African subspecies. (2020-11-19)

'Domestication' increases mosquito's zika virus susceptibility
The Aedes aegypti aegypti subspecies of mosquito, which has become a ''domestic'' pest worldwide, can acquire and transmit Zika virus more easily than its African forerunner. (2020-11-19)

Lethal brain infections in mice thwarted by decoy molecule
Researchers at Washington University School of Medicine in St. Louis have identified a molecule that protects mice from brain infections caused by Venezuelan equine encephalitis virus (VEEV), a mosquito-borne virus notorious for causing fast-spreading, deadly outbreaks in Mexico, Central America and northern South America. (2020-11-18)

Large-scale study: Congolese fishermen report decline in fish stocks on Lake Tanganyika
Fishermen working on Lake Tanganyika in eastern Congo experience a lack of safety and want better enforcement of existing regulations. They also report a decline in the lake's fish stocks. These are some of the findings of a large international study led by KU Leuven (Belgium) based on 1018 interviews with stakeholders in the area. The study was published in the Journal of Great Lakes Research. (2020-11-04)

UC researchers pioneer more effective way to block malaria transmission in mosquitoes
Employing a strategy known as 'population modification,' which involves using a CRISPR-Cas9 gene drive system to introduce genes preventing parasite transmission into mosquito chromosomes, University of California researchers have made a major advance in the use of genetic technologies to control the transmission of malaria parasites. (2020-11-03)

Malaria parasites adapt to survive the dry season, research shows
The main parasite that causes malaria can alter its gene expression to survive undetected in the human blood stream, new research has shown. (2020-10-30)

Salt-based mosquito-control products are ineffective, study shows
A new study by a bevy of expert mosquito researchers offers an important warning to consumers: Products claiming to reduce mosquito populations with salt-water solutions are ineffective. In a series of lab tests using nine mosquito species, researchers found no evidence that adult mosquitoes are killed by salt ingested at concentrations used in several popular mosquito-control products. The findings are reported in the Journal of Medical Entomology. (2020-10-20)

Light pollution may increase biting behavior at night in Aedes aegypti mosquitoes
Artificial light abnormally increases mosquito biting behavior at night in a species that typically prefers to bite people during the day, according to research from the University of Notre Dame that was published in The American Journal of Tropical Medicine and Hygiene. (2020-10-20)

AJTMH tip sheet for October 2020
Your advance look at two new studies publishing online on October 15, 2020 in The American Journal of Tropical Medicine and Hygiene. (2020-10-15)

Mosquitoes' taste for blood traced to four types of neurons
The female mosquito has an amazing ability to detect blood using her syringe-like ''tongue.'' Now scientists have identified the neurons that give her blood-seeking powers. (2020-10-12)

Chemists create new crystal form of insecticide, boosting its ability to fight mosquitoes and malaria
Through a simple process of heating and cooling, New York University researchers have created a new crystal form of deltamethrin -- a common insecticide used to control malaria -- resulting in an insecticide that is up to 12 times more effective against mosquitoes than the existing form. (2020-10-12)

Scientists discover mosquitoes' unique blood-taste detectors
Scientists aren't sure how mosquitoes sense taste of blood, or how they know that this, of all things, is something to gorge on. Nothing else, not even sweet nectar, makes them pump as ferociously as when they're draining our veins. New research identifies a unique group of neurons that don't care about simple tastes like sweet or salty. Rather, they activate only when sugar, salt, and other components of blood are all present at once. (2020-10-12)

How malaria parasites withstand a fever's heat
The parasites that cause 200 million cases of malaria each year can withstand feverish temperatures that make their human hosts miserable. Now, a Duke University-led team is beginning to understand how they do it. The researchers have identified a lipid-protein combo that springs into action to gird the parasite's innards against heat shock. Understanding how malaria protects its cells against heat and other onslaughts could lead to new ways to fight tough-to-kill strains, researchers say. (2020-10-05)

Mosquitos lost an essential gene with no ill effects
University of Maryland scientists discovered mosquitos are missing a gene that's critical for survival in other insects. Alys Jarvela noticed the missing gene and went on the hunt to find out how mosquitos survive without it. She identified the first example of nature swapping out closely related genes, a phenomenon that poses caveats for studies using model organisms as proxies for other species. The research was published September 30, 2020, in Communications Biology. (2020-09-30)

How zika virus degrades essential protein for neurological development via autophagy
Researchers at the University of Maryland (UMD) shed new light on how Zika virus hijacks our own cellular machinery to break down an essential protein for neurological development, getting it to ''eat itself''. By triggering this process known as autophagy, Zika virus is able to degrade an important protein, a process that may contribute to the development of neurological or brain deficiencies and congenital birth defects in the newborns of infected pregnant women. (2020-09-28)

New tool mimics human skin to allow detailed study of mosquito biting
Scientists have developed a tool for studying the biting behaviour of common pathogen-carrying mosquitoes, according to new research published this week in eLife. (2020-09-23)

Biologists create new genetic systems to neutralize gene drives
Addressing concerns about gene drive releases in the wild, UC San Diego scientists and their colleagues have developed two new genetic systems that halt or eliminate gene drives after release. Created in fruit flies, the e-CHACRs and ERACRs are powerful gene drive control mechanisms that were meticulously developed and tested at the genetic and molecular levels. (2020-09-18)

Rising temperatures could shift US West Nile virus transmission
West Nile virus spreads most efficiently in the US at temperatures between 24-25 degrees Celsius (75.2-77 degrees Fahrenheit), a new study published today in eLife shows. (2020-09-15)

Human activities promote disease-spreading mosquitoes; more study needed for prevention
Disease-spreading mosquitoes may be more likely to occupy areas impacted by human activities like pesticide use and habitat destruction, than they are areas less disturbed by humans, a recent Oregon State University study found. (2020-09-14)

Lab-on-paper strip: Small, inexpensive platform for diagnosing tropical fevers
Dengue, zika, and chikungunya viruses are transmitted by mosquitoes and cause tropical fevers with similar symptoms, making accurate diagnosis complicated. Now, researchers from Gwangju Institute of Science and Technology in Korea have developed a simple and low-cost diagnostic platform--a lab-on-paper strip--that can readily detect the specific RNA of these viruses from a small blood sample. (2020-09-11)

Maternal insecticide use during pregnancy and neonatal jaundice
Association between pesticide usage during pregnancy and neonatal hyperbilirubinemia requiring treatment: The Japan Environment and Children's study. (2020-08-28)

Mosquito immune system mapped to help fight malaria
Scientists have created the first cell atlas of mosquito immune cells, to understand how mosquitoes fight malaria and other infections. Researchers from the Sanger Institute and collaborators discovered new types of mosquito immune cells, including a rare cell type that could be involved in limiting malaria infection. The findings offer opportunities for uncovering novel ways to prevent mosquitoes from spreading the malaria parasite to humans and break the chain of malaria transmission. (2020-08-27)

Researchers show potential for subseasonal forecasts to predict dengue outbreaks
A new study demonstrates for the first time that subseasonal rainfall and temperature forecasts can be used to predict outbreaks of dengue fever by estimating mosquito abundance. (2020-08-25)

Flies and mosquitoes beware, here comes the slingshot spider
Running into an unseen spiderweb in the woods can be scary enough, but what if you had to worry about a spiderweb - and the spider - being catapulted at you? That's what happens to insects in the Amazon rain forests of Peru, where a tiny slingshot spider launches a web - and itself - to catch unsuspecting flies and mosquitoes. (2020-08-17)

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